Submission

Score: 0

User: APNICHANAN

Problemset: บาร์โค้ด

Language: c

Time: 0.001 second

Submitted On: 2025-09-25 16:17:38

#include <stdio.h>
#include <math.h>
int main()
{
    char a[14] = "";
    scanf("%s", a);
    int sum1 = 0, sum2 = 0, sum;
    for (int i = 1; i < 12; i++)
    {
        int x = a[i] - '0';
        if ((i + 1) % 2 == 0)
            sum1 += x * 3;
        else
            sum2 += x;
    }
    sum = sum1 + sum2;
    for (int i = 1; i >= 0; i++)
    {
        if (sum1 > pow(10, i))
        {
            sum1 -= (sum1 % 10);
            sum1 = sum1 / 10;
        }
        else
            break;
    }
    if ((sum + sum1) % 10 == 0)
        printf("YES");
    else
        printf("NO");
}